Note 7 - Revolving Lines Of Credit And Long-Term Debt (Details) (USD $)	12 Months Ended
	Jun. 30, 2013
Note 7 - Revolving Lines Of Credit And Long-Term Debt (Details) [Line Items]
Derivative, Basis Spread on Variable Rate (in Basis Points)	0.25%
Canada [Member]
Note 7 - Revolving Lines Of Credit And Long-Term Debt (Details) [Line Items]
Line of Credit Facility, Remaining Borrowing Capacity	$ 5,000,000
Line of Credit Facility, Amount Outstanding	0
United States [Member]
Note 7 - Revolving Lines Of Credit And Long-Term Debt (Details) [Line Items]
Line of Credit Facility, Remaining Borrowing Capacity	30,000,000
United States [Member] | Minimum [Member]
Note 7 - Revolving Lines Of Credit And Long-Term Debt (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate (in Basis Points)	175.00%
United States [Member] | Maximum [Member]
Note 7 - Revolving Lines Of Credit And Long-Term Debt (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate (in Basis Points)	2.15%
Canada [Member]
Note 7 - Revolving Lines Of Credit And Long-Term Debt (Details) [Line Items]
Debt Instrument, Basis Spread on Variable Rate (in Basis Points)	200.00%
Standby Letters of Credit [Member]
Note 7 - Revolving Lines Of Credit And Long-Term Debt (Details) [Line Items]
Line of Credit Facility, Amount Outstanding	$ 300,000